20101208

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2423}}^1$

素因数の和:2507

約数の個数: 32

約数和(自身を含む): 40577760

約数和(自身を除く): 20476552

約数列:

[1, 2, 4, 8, 17, 34, 61, 68, 122, 136, 244, 488, 1037, 2074, 2423, 4148, 4846, 8296, 9692, 19384, 41191, 82382, 147803, 164764, 295606, 329528, 591212, 1182424, 2512651, 5025302, 10050604, 20101208]

約数ペア:

[(1, 20101208), (2, 10050604), (4, 5025302), (8, 2512651), (17, 1182424), (34, 591212), (61, 329528), (68, 295606), (122, 164764), (136, 147803), (244, 82382), (488, 41191), (1037, 19384), (2074, 9692), (2423, 8296), (4148, 4846)]